Glover, Vivette, and Merton Sandler. "The biochemical basis of migraine predisposition." Migraine: A Spectrum of Ideas. : Oxford University Press, 1990-03-08. Oxford Scholarship Online. 2012-03-22. Date Accessed 19 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780192618108.001.0001/acprof-9780192618108-chapter-19>.
Glover, V., & Sandler, M.(1990-03-08). The biochemical basis of migraine predisposition. In Migraine: A Spectrum of Ideas. : Oxford University Press. Retrieved 19 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780192618108.001.0001/acprof-9780192618108-chapter-19.
Glover, Vivette, and Merton Sandler. "The biochemical basis of migraine predisposition." In Migraine: A Spectrum of Ideas. : Oxford University Press, 1990-03-08. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780192618108.001.0001/acprof-9780192618108-chapter-19.
Glover V, Sandler M. The biochemical basis of migraine predisposition. In: Sandler M, Collins GM. Migraine: A Spectrum of Ideas. Oxford University Press; 1990. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780192618108.001.0001/acprof-9780192618108-chapter-19. Accessed May 19, 2013.